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| 发酵液回流对餐厨垃圾厌氧消化的影响 | |
| 引用本文： | 王馨仪,郭建斌,吴树彪,王飞,董仁杰,陈理,庞昌乐.发酵液回流对餐厨垃圾厌氧消化的影响[J].环境工程,2012,30(5):77-81. |
| 作者姓名： | 王馨仪 郭建斌 吴树彪 王飞 董仁杰 陈理 庞昌乐 |
| 作者单位： | 1. 中国农业大学水利与土木工程学院,北京,100083 2. 北京市水文总站,北京,100089 3. 中国农业大学工学院,北京,100083 |
| 基金项目： | 十二五科技支撑计划，十二五863重点项目，公益性行业(环保)科研专项 |
| 摘 要： | 针对厌氧发酵液回流可提高厌氧系统性能,而不适的回流比例又会造成系统酸化的现象,采用单相连续反应器研究了发酵液回流及不同回流比对餐厨垃圾厌氧消化过程的影响。结果表明:在1 gVS/L的有机负荷下进行三种比例(10%、30%、50%)的发酵液回流使系统日平均产气量比不回流阶段分别提高0.7%、13.0%、4.9%,且对气体甲烷含量无显著影响。回流使VFA降解更充分,也使系统缓冲能力得到调节,但在较高的回流比(50%)下会造成Na+积累从而抑制系统产气性能。 |
| 关 键 词： | 餐厨垃圾 沼液回流 厌氧消化 沼气 高回流比 |
THE EFFECT OF SLURRY RECIRCULATION ON ANAEROBIC DIGESTION PERFORMANCE OF KITCHEN WASTE |
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| Wang Xinyi,Guo Jianbin,Wu Shubiao,Wang Fei,Dong Renjie,Chen Li,Pang Changle.THE EFFECT OF SLURRY RECIRCULATION ON ANAEROBIC DIGESTION PERFORMANCE OF KITCHEN WASTE[J].Environmental Engineering,2012,30(5):77-81. | |
| Authors: | Wang Xinyi Guo Jianbin Wu Shubiao Wang Fei Dong Renjie Chen Li Pang Changle |
| Institution: | 1.College of Water Resources & Civil Engineering,China Agricultural University,Beijing 100083,China; 2.College of Engineering,China Agricultural University,Beijing 100083,China; 3.Beijing Hydrological Center,Beijing 100089,China) |
| Abstract: | For slurry recirculation can improve the performance of anaerobic digestion system while inadaptable recirculation rate may lead to acidification,an anaerobic digestion experiment was carried out on kitchen waste to analyze the effect of slurry recirculation.Results showed that the average daily biogas production was increased by 0.7%,13.0% and 4.9% than its non-recirculation period when the recirculation rate was 10%,30% and 50%,respectively.Slurry recirculation had no harm to the methane percentage.With an increased recirculation rate,system's buffer capacity reduction performed better,but high recirculation rate(50%) would lead to sodium ion accumulation. |
| Keywords: | kitchen waste slurry recirculation anaerobic digestion biogas high recirculation rate |
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